How can I fix error F25 on Glow Worm boiler Flexicom24HX ?
The boiler shuts down intermittently with error F25. It will shut down after 1 day or last up to 7 days. There is no obvious reason why. The boiler is 3 - 4 years old. It works fine apart from this irritating problem
howtomendit.com for free repair help, information and advice.
